A sealing device for quick couplings of loading arms

Abstract

This utility model relates to the field of loading arm technology, and more particularly to a quick-connect sealing device for loading arms, comprising: a first connector and a second connector; a fixing ring, fixedly installed on the surface of the first connector, the outer circumference of the fixing ring having an annular groove; and a connecting ring, fixedly installed on the surface of the second connector, with a sealing ring installed between the connecting ring and the fixing ring. This utility model, by actuating the drive ring, causes the internal gear ring to drive each meshing gear to rotate synchronously until the screw is fully screwed into and out of the corresponding threaded pipe, quickly completing the assembly and disassembly of the first and second connectors. This facilitates the replacement of the sealing ring, solving the problem in traditional technology where multiple bolts need to be unscrewed one by one to replace the sealing ring, thus improving the convenience of sealing ring replacement.

Description

Technical Field

[0001] This utility model relates to the field of loading arm technology, and in particular to a sealing device for a quick coupling of loading arms. Background Technology

[0002] An arm is a retractable and movable pipe, primarily used for loading and unloading liquids at oil and chemical terminals. The media inside the pipe can be oil, water, etc. It mainly consists of fixed, rotating, operating, and balancing mechanisms, and the oil tubing. Quick couplings are meticulously manufactured from forged steel or aluminum alloy.

[0003] However, most quick couplings use an internal sealing ring for sealing, and the upper and lower parts of the quick coupling are usually connected by multiple fastening bolts with the sealing ring in between. This means that when replacing the worn sealing ring, it is necessary to unscrew all the bolts and separate the upper and lower parts of the quick coupling to replace the sealing ring, which is cumbersome and inconvenient.

[0004] Therefore, it is necessary to provide a new rotary joint sealing structure for loading arms to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the background art by proposing a quick-connect sealing device for loading arms.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sealing device for a quick-connect coupling of an arm-mounted loading arm, comprising:

[0008] First connector and second connector;

[0009] A retaining ring is fixedly installed on the surface of the first connector, and an annular groove is formed on the outer circumference of the retaining ring;

[0010] A connecting ring is fixedly installed on the surface of the second connector, and a sealing ring is installed between the connecting ring and the fixing ring.

[0011] Multiple connecting components are arranged in a circumferential array within the annular groove. Each connecting component includes a threaded tube that extends movably through the bottom of the annular groove. A gear is fixedly fitted onto the surface of the threaded tube and is rotatably mounted within the annular groove. A screw is threadedly connected to or separated from the threaded tube, and the other end of the screw is fixedly mounted on the top of the connecting ring.

[0012] The drive assembly includes a drive ring that is movably fitted around the outer circumference of a fixed ring, wherein an internal gear ring is fixedly installed inside the drive ring and is slidably connected in an annular groove and meshes with multiple gears.

[0013] Preferably, a receiving groove is provided on the opposite side of both the fixing ring and the connecting ring, and the receiving groove matches the sealing ring.

[0014] Preferably, the outer circumference of the drive ring is provided with multiple anti-slip grooves, and the anti-slip grooves are distributed in a circumferential array.

[0015] Preferably, the thickness of the internal gear ring and each gear is equal to the thickness of the annular groove.

[0016] Preferably, the inner diameter of the sealing ring, the inner diameter of the first connector, and the inner diameter of the second connector are all equal.

[0017] Compared with existing technologies, the advantages of the quick-connect sealing device for loading arms provided by this utility model are as follows:

[0018] This invention uses a drive ring to cause the internal gear ring to drive each meshing gear to rotate synchronously until the screw is fully screwed in and out of the corresponding threaded pipe. This allows for quick assembly and disassembly between the first and second connectors, facilitating the replacement of the sealing ring. It solves the problem in traditional technology where multiple bolts need to be unscrewed one by one to replace the sealing ring, thereby improving the convenience of replacing the sealing ring. Attached Figure Description

[0019] Figure 1 This is an exploded structural diagram of a sealing device for a quick-connect coupling of an loading arm proposed in this utility model;

[0020] Figure 2 This is a second-view structural schematic diagram of a sealing device for a quick-connect coupling of an arm-mounted air arm proposed in this utility model.

[0021] Figure 3 This is a cross-sectional view of the fixing ring in a quick-connect sealing device for loading arms proposed in this utility model.

[0022] Figure 4 This is a schematic diagram showing the disassembled structure of the fixing ring and the driving ring in the sealing device of the quick coupling of the loading arm proposed in this utility model.

[0023] In the figure: 1 First connector, 2 Second connector, 3 Retaining ring, 4 Annular groove, 5 Threaded pipe, 6 Gear, 7 Drive ring, 8 Internal gear ring, 9 Connecting ring, 10 Screw, 11 Sealing ring, 12 Anti-slip groove, 13 Receiving groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1 to 4 A sealing device for a quick-connect coupling of an arm-mounted loading arm, comprising:

[0026] First connector 1 and second connector 2; fixing ring 3, fixedly installed on the surface of first connector 1, the outer circumference of fixing ring 3 is provided with an annular groove 4.

[0027] A connecting ring 9 is fixedly installed on the surface of the second connector 2. A sealing ring 11 is installed between the connecting ring 9 and the fixing ring 3. A receiving groove 13 is provided on the opposite side of the fixing ring 3 and the connecting ring 9, and the receiving groove 13 matches the sealing ring 11. The inner diameter of the sealing ring 11, the inner diameter of the first connector 1 and the second connector 2 are all equal. After the fixing ring 3 and the connecting ring 9 are separated, the sealing ring 11 can be directly removed from the receiving groove 13 for replacement.

[0028] Multiple connecting components are arranged in a circumferential array within the annular groove 4. Each connecting component includes a threaded tube 5 that extends movably through the bottom of the annular groove 4. A gear 6 is fixedly mounted on the surface of the threaded tube 5 and is rotatably mounted within the annular groove 4. A screw 10 is threadedly connected or disconnected within the threaded tube 5, and the other end of the screw 10 is fixedly mounted on the top of the connecting ring 9. When connecting the first connecting head 1 and the second connecting head 2, each screw 10 is aligned with each threaded tube 5 to achieve preliminary positioning of the first connecting head 1 and the second connecting head 2.

[0029] The drive assembly includes a drive ring 7 that is movably mounted on the outer circumference of the fixed ring 3. The outer circumference of the drive ring 7 is provided with multiple anti-slip grooves 12, which are distributed in a circumferential array, increasing the roughness of the outer circumference of the drive ring 7 and making it easier for the user to rotate the drive ring 7.

[0030] An internal gear ring 8 is fixedly installed inside the drive ring 7, and the internal gear ring 8 is slidably connected in the annular groove 4 and meshes with multiple gears 6. The thickness of the internal gear ring 8 and each gear 6 is equal to the thickness of the annular groove 4, which ensures the stability of the rotation of the drive ring 7 and each gear 6.

[0031] The working principle of this utility model is as follows:

[0032] When the sealing ring 11 is damaged and needs to be replaced, the user moves the drive ring 7 to make the internal gear ring 8 drive each gear 6 that meshes with it to rotate synchronously until each screw 10 is screwed out to the corresponding threaded tube 5, thus completing the separation of the first connector 1 and the second connector 2. Finally, the sealing ring 11 is taken out from the receiving groove 13 on the connecting ring 9, thus completing the disassembly of the sealing ring 11.

[0033] Next, the new sealing ring 11 is placed back into the receiving groove 13 on the connecting ring 9. Then, each screw 10 is inserted into each threaded tube 5. Finally, the user reverses the drive ring 7 to make the internal gear ring 8 drive each meshing gear 6 to rotate synchronously until the screw 10 is completely screwed into the corresponding threaded tube 5, thus completing the fixation between the first connector 1 and the second connector 2, realizing the installation of the sealing ring 11, and improving the convenience of disassembling and replacing the sealing ring 11.

[0034] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealing device for a quick-connect coupling of an arm-mounted loading arm, characterized in that, include: First connector (1) and second connector (2); A fixing ring (3) is fixedly installed on the surface of the first connector (1), and an annular groove (4) is provided on the outer circumference of the fixing ring (3); A connecting ring (9) is fixedly installed on the surface of the second connector (2), and a sealing ring (11) is installed between the connecting ring (9) and the fixing ring (3); Multiple connecting components are arranged in a circumferential array within the annular groove (4). Each connecting component includes a threaded tube (5) that extends movably through the bottom of the annular groove (4). A gear (6) is fixedly mounted on the surface of the threaded tube (5), and the gear (6) is rotatably mounted within the annular groove (4). A screw (10) is threadedly connected or disconnected within the threaded tube (5), and the other end of the screw (10) is fixedly mounted on the top of the connecting ring (9). The drive assembly includes a drive ring (7) that is movably fitted on the outer circumference of a fixed ring (3), and an internal gear ring (8) is fixedly installed inside the drive ring (7), and the internal gear ring (8) is slidably connected in an annular groove (4) and meshes with multiple gears (6).

2. The sealing device for a quick-connect coupling of an arm-mounted loading arm according to claim 1, characterized in that, The fixed ring (3) and the connecting ring (9) are provided with receiving grooves (13) on opposite sides, and the receiving grooves (13) are matched with the sealing ring (11).

3. The sealing device for a quick-connect coupling of an arm-mounted loading arm according to claim 1, characterized in that, The outer circumference of the drive ring (7) is provided with multiple anti-slip grooves (12), and the anti-slip grooves (12) are distributed in a circumferential array.

4. The sealing device for a quick-connect coupling of an arm-mounted loading arm according to claim 1, characterized in that, The thickness of the internal gear ring (8) and each gear (6) is equal to the thickness of the annular groove (4).

5. The sealing device for a quick-connect coupling of an arm-mounted loading arm according to claim 1, characterized in that, The inner diameter of the sealing ring (11), the inner diameter of the first connector (1), and the inner diameter of the second connector (2) are all equal.

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